Question: Q1. (1 mark) When measuring listeners discrimination or detection abilities, a two-interval, two- alternative forced choice task is preferable to a yes/no task because: a)

Q1. (1 mark) When measuring listeners discrimination or detection abilities, a two-interval, two-

alternative forced choice task is preferable to a yes/no task because:

a) It maximizes sensitivity
b) It minimizes the effect of response bias
c) It prevents guessing

d) Iteliminatesfalsealarms

Q2. (4 marks total) Please show work

a) (2 mark) If the Weber fraction for discriminating tones near 4 kHz of 40 dB SL is 0.007, what is the numerical value of the just-noticeable-difference (JND) for frequency at 4 kHz?

b) (2 marks) If the just-noticeable-difference (JND) to discriminate two low frequency tones is 1 Hz, and the Weber fraction is 0.005, what is the frequency of the lower frequency tone?

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